Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

2. The condition of refrigerant after passing through the condenser in a vapour compression system is

3. The operating pressure for refrigerating units using R-12 as a refrigerant is

4. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

5. The capillary tube, as an expansion device, is used in

6. The curved lines on a psychrometric chart indicates

7. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

8. Cooling water is required for following equipment in ammonia absorption plant

9. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

10. The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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